AC-454 visual indicator in video menus + safe transcripts

Make karma logs cleaner

Adding logic to check if cert is invalidate then user cannot see the …

Disable parallelization for lms unit tests.

Fix overflowing images in forum posts/responses

modified tests to directly address split test group 0 issues.

Reduce linter thresholds.

Fix course export on edge

Fix email opt in list managemnet command

Removing instances of positive integer tab index values

WL-507: Update the version of Recommender XBlock

updated the version from 2.0.6 to 2.0.7

ECOM-4217

Merge hotfix-2016-06-10 release into master

TNL-4705

AC-414 adding headings as first child to sections

Hotfix for GET to POST

Repair platform API documentation build

Ensure split-test group zero content is protected

Mocked some Python modules when running a Sphinx documentation publishing build. Updated an autoclass class name that changed."

New XBlock Configuration Models

TNL-4771

TNL-4666

Enable concurrency (but not randomization) in LMS unit tests

AC-473 fixing width of closed captions in fullscreen

Clean up the help tab Sass included on Pattern Library pages